<?php
// Include required library files.
require_once('includes/config.php');
require_once('includes/paypal.class.php');

// Create PayPal object.
$PayPalConfig = array('Sandbox' => $sandbox, 'DeveloperAccountEmail' => $developer_account_email, 'ApplicationID' => $application_id, 'DeviceID' => $device_id, 
						'IPAddress' => $device_ip_address, 'APIUsername' => $api_username, 'APIPassword' => $api_password, 'APISignature' => $api_signature, 'APISubject' => $api_subject);
$PayPal = new PayPal_Adaptive($PayPalConfig);

// Prepare request arrays
$PaymentDetailsFields = array(
							'PayKey' => '', 							// The pay key that identifies the payment for which you want to retrieve details.  
							'TransactionID' => '', 						// The PayPal transaction ID associated with the payment.  
							'TrackingID' => ''							// The tracking ID that was specified for this payment in the PayRequest message.  127 char max.
							);
							
$PayPalRequest = array('PaymentDetailsFields' => $PaymentDetailsFields);


// Pass data into class for processing with PayPal and load the response array into $PayPalResult
$PayPalResult = $PayPal->PaymentDetails($PayPalRequestData);

// Write the contents of the response array to the screen for demo purposes.
echo '<pre />';
print_r($PayPalResult);
?>